Jack



H. LoRENz'EN.

C APPLICATION l:"IALEII APR. 8. 1921. 1,406,881. Patented Feb. 14, 1922.

Y F691. l i F'ztg. 2.

INVENTOR ATTORNEI UNITED* STATES PATENT oifificen.H

HENRY LORENZN; F CRETE, ILLINS.v

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To @ZZ whom t may concer-n p 5 Be it known that I, HENRY LonENznN, a citizen of the' United States, residing at Crete7 in the county of Will and State of Illinois, have invented new and' useful Improveinents in Jacks7 oi which the following is a specification. j This invention relates toy lift jacks, and

` an objectvofthe invention is to providea vso lifting jack which is simple in construction and one which may be easily and quickly set .and operated'` for raising desired articles. c v

Another object of this inventionis to provide a jack structure, as specified, which includes, a pair of pivotally connected inein- `bers, one or which adj ustably carries anarticle engaging-and supporting member which pivotally or hingedly connected sections are adapted to be'moved at an obti'ise'angle to each other to permit the insertion of the jack beneath the object to be raisedand forced into alignment to raise the article and support it inraised position.

Other objects of the invention will appear in the following detailed description and in the accompanying drawings wherein:

Fig. 1 is aside elevation, partly in section of the improved ack showing it in a supporting position.

Fig. 2 is an edge elevation partly in sec tion of the improved jack structure.

Fig. 3 is a reducedside elevation of the jack structure showing it in position to be inserted beneath an article to be raised.

Fig. 4- is a detail cross section taken on the line i- 4 of Fig. 1. Y

Referring more particularly to the drawing the improved jack structure comprises themain body 1 formed of sections 2 and 3. The base section 3 is provided with spaced barrel ears f1 on its upper end at each side thereof between which barrel ears the hinged barrel 5, which is formed upon the upper section 2, engages. A pivoted pin 6 extends through the aligning openings 7 in the respective barrels 4: and 5 for pivotally or hingedly connecting the section 2 to the base section 3. The meeting ends oi the sections 2 and 3 are slightly increased in area by the outward tapering of their sides as shown at 8 so as to provide greater engaging areas between the members to se curely support the member 2 upon the base member 3 when in an .article supporting position.

v I Specification of Letters I'Patent. vPatented F.eb 14, 17922. Application led April 8, 1921. 'SeralNa 459,520. l i

Theupper section 2 of the jack structure is provided .with a longitudinally extending bore 10 which 'slidably receives therein the article engaging adjustable member 11 which Lhas a seat block 12 upon its upperrv end yshaped to fit against rounded or concave lmembers if necessary to Aprovide iirni engagement with the article to be raised. The i member 11 is provided with a plurality of longitudinally spaced, upwardly inclining recesses 13V' extending inwardly from one oi' its sides7 as clearlyshown [in Fig.` 1 of the drawing7 and thefbody section 2 is lprovided with 'aligning slots V14 which incline oppo sitely to-the vdirection of inclination or the cutout' portions 1'3 and which extend into lateral extensions 15 formed on Vtheupper section A pin orfbolt 16 is carried by the upper section 2 and mounted in the slots 14, the said pin being adapted to be seated in any oneof the recesses 13 to maintain ythe Y ing to provide a leverage whereby the j ack` may be moved on its hinged connection into operative supporting position as shown in Fig. 1 of the drawing. The handle 19 is adapted to be removed when the jack is in a supportingy position.

InV use, the hinged'joint of the jack is broken to position sections 2 and 3 atobtuse angles one to the other andthe meinber 11 is adjusted until the` seat 12 thereon properly engages the member to be raised, after which pressure is applied to the spread edges of the sections 2 and 3 to force them into alignment one with the other and to force their facing surfaces into engagement as shown in Fig. 1 of the drawing which willraise the article engaged by the jack.l

The jack may be easily and quicklyvremoved from a supporting position by again breaking the pivoted or hinged joint.

It is, of course, to be understood that the invention may be constructed in various other manners and the parts associated in diiierent relations, and, therefore, I do not as set forth in the claims hereunto api pended.

Having thus described my invent-ion what I claim is: j v1.In. a jack, a base section,f van upper section liingedly connected `toksaid :base sec tion at one edge, the engaging surfaces of said upper and base sections being enlarged, said upper section provided with a longitudinally'extending bore, an article engaging member slidably mounted in'said bore,

means for holding said article` engaging member in adjusted position and a removable handle carried by said base structure and extending at anacute anOle to the verj tical-'sides olfthe base section. u

2.111 a jack, a base section, an upper sectiomhingedly connected at one edge, to said base section and adapted to have its lower surface lie in `facial abutment with the upper surface of the base section, an article engaging member slidably carriedby said upper section and provided with a plurality of longitudinally spaced downwardly inclining recesses opening out at one side of the member7 said upper section provided with slots extending transversely of said recesses and a pin in said slots and adapted to engage in Vany one of saidrecesses to hold said article engaging member in adjusted positions relative to said upper section.

incassi In a jack, a base section, an upper section hingedly` connected atv one edge,'tol said base sectionV and adapted to have its lower surface lie'in facial abutment with the upper surface of the base section, an

article engaging member slidablycarried by said upperseetlon and providedwith a plu- .rality of longitudinally spaced downwardly incl'ining recesses opening out at oneside ol the member, said upper section provided with slots extending transversely of said recesses and a pin insaid slots extending transversely of said recessesand adaptedto engage-in any one ofsaid recesses to hold said article engagingmember in adjusted position relative to said upper section, and a removable handle carried by saidbase structure and extending atVanacute- Yangle to the sides thereof, v Y j l 14:., In vfa jack, j a base section, an upper sectionhingedly connected thereto, an article engaging member slidably carried by said upper section and provided with a plurality or longitudinally spaced downwardly inclining recesses opening .out at one side oi the member, said upper section provided with slots extending transversely of said recesses, and alpin in saidslots and adapted to engage ina-ny one of said recesses to hold said article engaging member in adjusted position relative to said upper section.

x In testimony whereof I aix my signature.

HENRY LORENZEN. 

